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How to Wire a Three Way Switch to a Existing Single Pole Light Switch Circuit.

3way-switch

In this video, I explain just how easy it is to add a three-way switch to an existing single pole (one) switch lighting circuit. Now if you are trying to install a completely new 3-way circuit please my video with an article on how to install a three-way.  Otherwise, this may confuse you a little.

Even if you hire an electrician to do the job for you. You can still save a few bucks by installing the wire yourself. I mean that’s the hardest part to this.

The hardest part will be running the 4 wire from the existing switch to the new one. Take a look at my video and ask any questions if you need help.

 

 

Three way switch wiring

Three way switch wiring

 

Video Thumbnail

How to install a three way switch to a existing one way switch

 

 

You can also view this video right on Youtube.com VIDEO

 

How to Wire a Three Way Switch to a Existing Single Pole Light Switch Circuit.
4.2 (83.33%) 18 votes

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Comments ( 9 )

  1. Thank you

  2. Subscribe to Askmediy Recently Asked Questions

  3. Dominick Amorosso

    Watch my video on how to install a 3 way switch to a existing one way.

  4. I have a single switch controlling a lite direct, power source is through the switch, how do I tie the 14/3 I have ran for 2nd switch location to where no need for rerouting the wire to the lite from second switch?

  5. Dominick

    You’ll need a four wire from switch to switch. Than watch the video again. It should be very clear.

  6. I have a 3way line from switch to light, but only one switch how can I hook the light up to work. Don’t know what to do with the red line

  7. Dominick

    Sometimes a picture is worth a thousand words.

  8. Thanks, A wiring diagram is great lesson 🙂

  9. Thank you so much. I posted the same diagram that I have on how to wire a three way. This page is how to add a three way to a exiting circuit. http://www.askmediy.com/how-to-wire-a-3-way-switch-with-video/ Thanks again..

  10. A wiring diagram for this “how to” would be extremely helpful.
    Thanks

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